1) Yield components
The effect of yield components on the during of yield increasing was analyzed with the theories of systemic development and the practice of scientific study and production, and a viewpoint which is cooperitly increasing the grain number and grain weight with the ears as a center was put forword.
It showed that,①As far as the heterosis over mid-parent(HM)were concerned,all yield components showed significant positive correlation to yield at 0.
2) Yield component
It wasshowed that the relative value of the combining abilities of grain yield approximately e-quals to the sum of that of three yield components,or to the sum of that of biomass andharvest index.
3) Yield factor
In this paper, the correlativity between resistance to striped rice horer in the field and yield factors of 8 kinds of rice varieties was reported and resistant levels of the 8 kinds of Rice varieties were first evaluated.
4) yield factors
The cotton yield factors,the hereditary effect of cotton fiber quality and the genetic correlation were studied using the incomplete diallel analysis(8×8),and the genetic correlation was divided into addictive correlation and dominant correlation.
5) production decline factor
6) Yield components
Study on the relationship between yield components and yield of super rice;
Effects of seeding time on grain yield,yield components and growth duration in different rice varieties;
Analysis of yield components and structure indexes in New Cotton variety xinmian 503